code: def incorrect_dtype(cls, dtypes, hint):
      @parameter_space(dtype_=dtypes)
      def test(self, dtype_):
          with self.assertRaises(UnsupportedDataType) as e:
  
              class Incorrect(cls):
                  missing_value = missing_values.get(
                      dtype_, NotSpecified
                  )
                  inputs = []
                  window_length = 1
                  dtype = dtype_
  
              # the dtype is only checked at instantiating time, not class
              # construction time
              Incorrect()
  
          self.assertIn(hint, str(e.exception))
          self.assertIn(str(dtype_), str(e.exception))
  
      return test
  
file_path: zipline/tests/pipeline/test_dtypes.py
imports: from zipline.errors import UnsupportedDataType
  from zipline.pipeline import CustomClassifier, CustomFactor, CustomFilter
  from zipline.pipeline.dtypes import CLASSIFIER_DTYPES, FACTOR_DTYPES, FILTER_DTYPES
  from zipline.pipeline.sentinels import NotSpecified
  from zipline.testing import parameter_space
  from zipline.testing.fixtures import ZiplineTestCase
  from zipline.utils.numpy_utils import int64_dtype, bool_dtype
label_desc: Use image node_id 2 for calling the DtypeTestCase obj's underlying member method code with example usage: obj.incorrect_dtype(cls, dtypes, hint) and returns: test